Dell Home offers its Dell UltraSharp P2415Q 23.8" 4K Ultra HD IPS LED-Backlit LCD Monitor bundled with a $150 Dell Gift Card for $529.99 with free shipping. (The gift card will be emailed to you 10 to 20 days after purchase.) Assuming you'll use the credit, that's the lowest total price we could find by $158. It features a 3840x2160 native resolution (four times that of 1080p), LED backlight, anti-glare, four USB 3.0 downstream ports, one USB upstream port, DisplayPort, mini DisplayPort, and HDMI.